Property does not exist issue running Angular2 ver.2.0.0-alpha.44

Question

New to Angular2, trying to get this plunkr project running on my local system. I'm getting the following errors:

Error:(25, 23) TS2339: Property 'people' does not exist on type 'PeopleService'. Error:(26, 39) TS2339: Property 'people' does not exist on type 'People'

on the lines: peopleService.people
.subscribe(people => this.people = people);

I'm reasonably confident I have the environment set up properly as I have other basic components running properly.

people.ts file:

import {Component, View, CORE_DIRECTIVES} from 'angular2/angular2'  
import {PeopleService} from './peopleService'  
import {Person} from './person'

@Component({  
    selector: 'my-app',  
    providers: [PeopleService]  
})  
@View({
    template: `
    <div>
      <h2>Hello Angular2!</h2>
      <my-person
        *ng-for="#person of people"
        [name]="person.name"
        (hello)="saidHello($event)">
      </my-person>
    </div>
  `,  
        directives: [CORE_DIRECTIVES, Person]  
})  
export class People {  
    constructor(public peopleService:PeopleService) {  
        peopleService.people  
            .subscribe(people => this.people = people);  
    }  
    saidHello($event){  
        alert(`You said hello to ${$event}`)  
    }
}

Similar error in the peopleService.ts file:

Error:(8, 14) TS2339: Property 'people' does not exist on type 'PeopleService'.

//a simple service
import {Injectable} from 'angular2/angular2';
import {Http} from 'angular2/http';

@Injectable()
export class PeopleService {
  constructor(http:Http) {
    this.people = http.get('api/people.json').map(res => res.json());
  }
}

Any guidance would be greatly appreciated!

Yaniv, I'm still working thru this, below is the exception after implementing the change.  Also, I didn't notice this before but I'm getting a warning in the people.ts file on the following statements:
    [name]="person.name"
    (hello)="saidHello($event)">

warning Attribute [name] not allowed here
Attribute (hello) not allowed here

EXCEPTION: Cannot resolve all parameters for People(?). Make sure they all have valid type or annotations.
angular2.dev.js:21835 EXCEPTION: Cannot resolve all parameters for People(?). Make sure they all have valid type or annotations.BrowserDomAdapter.logError @ angular2.dev.js:21835BrowserDomAdapter.logGroup @ angular2.dev.js:21846ExceptionHandler.call @ angular2.dev.js:4431(anonymous function) @ angular2.dev.js:19543NgZone._onError @ angular2.dev.js:10711errorHandling.onError @ angular2.dev.js:10630run @ angular2.dev.js:141(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$$internal$$tryCatch @ angular2.dev.js:1507lib$es6$promise$$internal$$invokeCallback @ angular2.dev.js:1519lib$es6$promise$$internal$$publish @ angular2.dev.js:1490(anonymous function) @ angular2.dev.js:219microtask @ angular2.dev.js:10670run @ angular2.dev.js:138(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$asap$$flush @ angular2.dev.js:1301
angular2.dev.js:21835 STACKTRACE:BrowserDomAdapter.logError @ angular2.dev.js:21835ExceptionHandler.call @ angular2.dev.js:4433(anonymous function) @ angular2.dev.js:19543NgZone._onError @ angular2.dev.js:10711errorHandling.onError @ angular2.dev.js:10630run @ angular2.dev.js:141(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$$internal$$tryCatch @ angular2.dev.js:1507lib$es6$promise$$internal$$invokeCallback @ angular2.dev.js:1519lib$es6$promise$$internal$$publish @ angular2.dev.js:1490(anonymous function) @ angular2.dev.js:219microtask @ angular2.dev.js:10670run @ angular2.dev.js:138(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$asap$$flush @ angular2.dev.js:1301
angular2.dev.js:21835 Error: Cannot resolve all parameters for People(?). Make sure they all have valid type or annotations.
    at NoAnnotationError.BaseException [as constructor] (http://127.0.0.1:8080/node_modules/angular2/bundles/angular2.dev.js:16034:21)
    at new NoAnnotationError (http://127.0.0.1:8080/node_modules/angular2/bundles/angular2.dev.js:4983:14)
    at _dependenciesFor (http://127.0.0.1:8080/node_modules/angular2/bundles/angular2.dev.js:20066:13)
    at resolveFactory (http://127.0.0.1:8080/node_modules/angular2/bundles/angular2.dev.js:19964:22)
    at Object.resolveProvider (http://127.0.0.1:8080/node_modules/angular2/bundles/angular2.dev.js:19983:66)
    at Function.DirectiveProvider.createFromProvider (http://127.0.0.1:8080/node_modules/angular2/bundles/angular2.dev.js:23906:27)
    at Function.DirectiveProvider.createFromType (http://127.0.0.1:8080/node_modules/angular2/bundles/angular2.dev.js:23915:32)
    at provideDirective (http://127.0.0.1:8080/node_modules/angular2/bundles/angular2.dev.js:27209:49)
    at http://127.0.0.1:8080/node_modules/angular2/bundles/angular2.dev.js:27188:14
    at Array.map (native)BrowserDomAdapter.logError @ angular2.dev.js:21835ExceptionHandler.call @ angular2.dev.js:4434(anonymous function) @ angular2.dev.js:19543NgZone._onError @ angular2.dev.js:10711errorHandling.onError @ angular2.dev.js:10630run @ angular2.dev.js:141(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$$internal$$tryCatch @ angular2.dev.js:1507lib$es6$promise$$internal$$invokeCallback @ angular2.dev.js:1519lib$es6$promise$$internal$$publish @ angular2.dev.js:1490(anonymous function) @ angular2.dev.js:219microtask @ angular2.dev.js:10670run @ angular2.dev.js:138(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$asap$$flush @ angular2.dev.js:1301
angular2.dev.js:21845 EXCEPTION: TypeError: Cannot read property 'location' of undefined
angular2.dev.js:21835 EXCEPTION: TypeError: Cannot read property 'location' of undefinedBrowserDomAdapter.logError @ angular2.dev.js:21835BrowserDomAdapter.logGroup @ angular2.dev.js:21846ExceptionHandler.call @ angular2.dev.js:4431(anonymous function) @ angular2.dev.js:19543NgZone._onError @ angular2.dev.js:10711errorHandling.onError @ angular2.dev.js:10630run @ angular2.dev.js:141(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$$internal$$tryCatch @ angular2.dev.js:1507lib$es6$promise$$internal$$invokeCallback @ angular2.dev.js:1519lib$es6$promise$$internal$$publish @ angular2.dev.js:1490(anonymous function) @ angular2.dev.js:219microtask @ angular2.dev.js:10670run @ angular2.dev.js:138(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$asap$$flush @ angular2.dev.js:1301
angular2.dev.js:21835 STACKTRACE:BrowserDomAdapter.logError @ angular2.dev.js:21835ExceptionHandler.call @ angular2.dev.js:4433(anonymous function) @ angular2.dev.js:19543NgZone._onError @ angular2.dev.js:10711errorHandling.onError @ angular2.dev.js:10630run @ angular2.dev.js:141(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$$internal$$tryCatch @ angular2.dev.js:1507lib$es6$promise$$internal$$invokeCallback @ angular2.dev.js:1519lib$es6$promise$$internal$$publish @ angular2.dev.js:1490(anonymous function) @ angular2.dev.js:219microtask @ angular2.dev.js:10670run @ angular2.dev.js:138(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$asap$$flush @ angular2.dev.js:1301
angular2.dev.js:21835 TypeError: Cannot read property 'location' of undefined
    at angular2.dev.js:19434
    at Zone.run (angular2.dev.js:138)
    at Zone.run (angular2.dev.js:10644)
    at zoneBoundFn (angular2.dev.js:111)
    at lib$es6$promise$$internal$$tryCatch (angular2.dev.js:1507)
    at lib$es6$promise$$internal$$invokeCallback (angular2.dev.js:1519)
    at lib$es6$promise$$internal$$publish (angular2.dev.js:1490)
    at angular2.dev.js:219
    at microtask (angular2.dev.js:10670)
    at Zone.run (angular2.dev.js:138)BrowserDomAdapter.logError @ angular2.dev.js:21835ExceptionHandler.call @ angular2.dev.js:4434(anonymous function) @ angular2.dev.js:19543NgZone._onError @ angular2.dev.js:10711errorHandling.onError @ angular2.dev.js:10630run @ angular2.dev.js:141(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$$internal$$tryCatch @ angular2.dev.js:1507lib$es6$promise$$internal$$invokeCallback @ angular2.dev.js:1519lib$es6$promise$$internal$$publish @ angular2.dev.js:1490(anonymous function) @ angular2.dev.js:219microtask @ angular2.dev.js:10670run @ angular2.dev.js:138(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$asap$$flush @ angular2.dev.js:1301
angular2.dev.js:21845 EXCEPTION: TypeError: Cannot read property 'hostView' of undefined
angular2.dev.js:21835 EXCEPTION: TypeError: Cannot read property 'hostView' of undefinedBrowserDomAdapter.logError @ angular2.dev.js:21835BrowserDomAdapter.logGroup @ angular2.dev.js:21846ExceptionHandler.call @ angular2.dev.js:4431(anonymous function) @ angular2.dev.js:19543NgZone._onError @ angular2.dev.js:10711errorHandling.onError @ angular2.dev.js:10630run @ angular2.dev.js:141(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$$internal$$tryCatch @ angular2.dev.js:1507lib$es6$promise$$internal$$invokeCallback @ angular2.dev.js:1519lib$es6$promise$$internal$$publish @ angular2.dev.js:1490(anonymous function) @ angular2.dev.js:219microtask @ angular2.dev.js:10670run @ angular2.dev.js:138(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$asap$$flush @ angular2.dev.js:1301
angular2.dev.js:21835 STACKTRACE:BrowserDomAdapter.logError @ angular2.dev.js:21835ExceptionHandler.call @ angular2.dev.js:4433(anonymous function) @ angular2.dev.js:19543NgZone._onError @ angular2.dev.js:10711errorHandling.onError @ angular2.dev.js:10630run @ angular2.dev.js:141(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$$internal$$tryCatch @ angular2.dev.js:1507lib$es6$promise$$internal$$invokeCallback @ angular2.dev.js:1519lib$es6$promise$$internal$$publish @ angular2.dev.js:1490(anonymous function) @ angular2.dev.js:219microtask @ angular2.dev.js:10670run @ angular2.dev.js:138(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$asap$$flush @ angular2.dev.js:1301
angular2.dev.js:21835 TypeError: Cannot read property 'hostView' of undefined
    at tick (angular2.dev.js:19626)
    at Zone.run (angular2.dev.js:138)
    at Zone.run (angular2.dev.js:10644)
    at zoneBoundFn (angular2.dev.js:111)
    at lib$es6$promise$$internal$$tryCatch (angular2.dev.js:1507)
    at lib$es6$promise$$internal$$invokeCallback (angular2.dev.js:1519)
    at lib$es6$promise$$internal$$publish (angular2.dev.js:1490)
    at angular2.dev.js:219
    at microtask (angular2.dev.js:10670)
    at Zone.run (angular2.dev.js:138)BrowserDomAdapter.logError @ angular2.dev.js:21835ExceptionHandler.call @ angular2.dev.js:4434(anonymous function) @ angular2.dev.js:19543NgZone._onError @ angular2.dev.js:10711errorHandling.onError @ angular2.dev.js:10630run @ angular2.dev.js:141(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$$internal$$tryCatch @ angular2.dev.js:1507lib$es6$promise$$internal$$invokeCallback @ angular2.dev.js:1519lib$es6$promise$$internal$$publish @ angular2.dev.js:1490(anonymous function) @ angular2.dev.js:219microtask @ angular2.dev.js:10670run @ angular2.dev.js:138(anonymous function) @ angular2.dev.js:10644zoneBoundFn @ angular2.dev.js:111lib$es6$promise$asap$$flush @ angular2.dev.js:1301

EDIT:

Simplified version of PeopleService

//a simple service import {Injectable} from 'angular2/angular2';

@Injectable() export class PeopleService {
    people: any;
    constructor() {
        this.people = [
            {"id": 1, "name": "Brad"},
            {"id": 2, "name": "Jules"},
            {"id": 3, "name": "Jeff"}
        ]
    } }

Answer 1

The error is caused by Typescript compiler. You have to define people as a member of PeopleService:

 //a simple service
import {Injectable} from 'angular2/angular2';
import {Http} from 'angular2/http';

@Injectable()
export class PeopleService {
  people: any;//-> this part is missing in your code.
  constructor(http:Http) {
    this.people = http.get('api/people.json').map(res => res.json());
  }
}

I'm not sure what type off array is it so I made it any. Anyway, it should be defined as a class member.

EDIT:

In response to the your edit with the error in PeopleService. Try to update your component to inject People service like that:

import {Component, View, CORE_DIRECTIVES} from 'angular2/angular2'
import {Inject} from 'angular2/core'; 
import {PeopleService} from './peopleService'  
import {Person} from './person'

@Component({  
    selector: 'my-app',  
    providers: [PeopleService]  
})  
@View({
    template: `
    <div>
      <h2>Hello Angular2!</h2>
      <my-person
        *ng-for="#person of people"
        [name]="person.name"
        (hello)="saidHello($event)">
      </my-person>
    </div>
  `,  
        directives: [CORE_DIRECTIVES, Person]  
})  
export class People {
    public peopleService: PeopleService;   

    constructor(@Inject(PeopleService) peopleService:PeopleService) {  
      this.peopleService = peopleService;  
      this.peopleService.people  
            .subscribe(people => this.people = people);  
    }  
    saidHello($event){  
        alert(`You said hello to ${$event}`)  
    }
}

Pay attention to the @Inject(PeopleService) inside your constructor and the new import of it:

import {Inject} from 'angular2/core';

I recommend to read this awesome post about dependency injection in Angular 2, it helped me a lot!